PHASE DIFFERENCE FILM, CIRCULARLY POLARIZING PLATE USING SAME, AND IMAGE DISPLAY DEVICE

摘要

The retardation film of the present invention is obtained by molding at least one polymer selected from polycarbonate and polyester carbonate each having a glass transition temperature of 110 to 180°C and satisfies the relationships of the following formulae (A) and (B): 0.7 < R 1 450 / R 1 550 < 1 R 2 450 / R 2 550 - R 1 450 / R 1 550 < 0.020